.grid-preview
{
     background-color: rgba(0, 188, 212,0.0);
     border: rgba(0, 188, 212,0.0);
}

.grid-preview:activate
{
    background-color: rgba(0, 188, 212,0.4);
    border: 1px solid rgba(0, 188, 212,0.8);
}
